Re: Ye Old X29


Tim O'Connor
 

David Thompson wrote

  > '23 was the original proposal that was voted down. B&O's original class M26 (no suffix)
  > was built to that spec, but everything else was derived from the revised '24 specs.
  > As for the RC kits, 7002 is the original X29 from 1924 (also B&O M26B).
  > 7001 is the revised rivet pattern for the side sheets, plus the Dreadnaught ends used on
  > the X29s built in the early 1930s. Kitbashing the plate ends from 7002 onto 7001 will get
  > you a late '20s X29.
  > 7003 is the ARA 1924 design (B&O M26A, C, D, etc. and not the same as the early X29).


I'm not sure you got all those facts straight David. But perhaps it's just the way you
worded the message. Here are two reposts from Chris Barkan from long ago and far away,
i.e. from the old and forgotten Freight Car List

Bottom line, I'm pretty sure Red Caboose only did the 1923 ARA, 1924 X29 & 1928 X29 designs.
And they also did the 1928 X29 with dreadnaught ends.

====================================================================================
Repost #1 from Chris Barkan
====================================================================================

ARA 1923 Steel Boxcar Students,

Last fall when the RC ARA design boxcar question was emerging I tried to
sort things out with Richard and Byron using the following diagrams.
They may be helpful to modelers interested in the cars currently being
released.

At the end of this post I have a table that summarizes my understanding
of which railroads had which.  This listing may be incomplete, but
remember, RDG's, and I think N&W's cars were taller than the ARA height.
I don't remember the ERIE cars but I think they were somehow different
too. The SAL cars definitely were different as someone else stated.
I would welcome any corrections to the table.

Following are some simple diagrams of the different rivet/seam patterns
for the ARA 1923 steel boxcar design, AKA X-29 below.  The ">" notation
below indicates which panel overlaps the adjacent panel with 5 being
the inner-most panel (adjacent to the door) and 1 being the panel at the
end of the car.

The vertical column of ":" indicates the panel seam rivets,

the vertical column of "|" indicates the seam,
 
the vertical column of "." indicates the second row of rivets attaching
 the panel to the vertical structural member.

                   Panel Number
          5       4        3        2        1
       ____    ___      ____     ___      ____
           : |.     : |.     : |.    . : |     |
           : |.     : |.     : |.    . : |     |  
           : |.     : |.     : |.    . : |     |
       ____: |.___  : |.____ : |.___ . : |____ |

#1) Early PRR "In Style"  Red Caboose 1924

Panel 5>4>3>2>1
       ____    ____     ____    _____     ____
           |: .     |: .     |: .    . : |     |
           |: .     |: .     |: .    . : |     | 
           |: .     |: .     |: .    . : |     |
       ____|:  ____ |:  ____ |  _____    |____ |
 
 #2) Late PRR "Out Style"  Red Caboose 1928

Panel 5<4<3<2>1
       ____    _____     ___     ____    ____
           : |.      : |.    : |.    : |.     |
           : |.      : |.    : |.    : |.     |   
           : |.      : |.    : |.    : |.     |
       ____: |._____ : |.___ : |.____: |. ___ |

#3) ARA 1923 design, used by B&O, & others (see below)

Panel 5>4>3>2>1

Even without a discussion of which panels overlap which, the main thing
that distinguishes the two PRR styles (#1 & #2 above) from the ARA style
(#3 above) is that neither of the PRR styles have the second row of
rivets (non-seam row) in panel 1.  In fact I think this rivet pattern
is all that distinguishes the PRR 1924 style (#1 above) from the "ARA"
style (#3 above). I believe these two have the same seam overlap pattern,
the only difference is in the placement of the second (non-seam) row
of rivets on panel 2 on the PRR 1924 design, whereas the second row
is on panel 1 on the ARA  style.

Based on a quick survey of Byron's photos I think that we concluded
the following RRs had cars of the 3 side designs as follows (ignoring
roof, end and UF designs).

Side Design Type

#1) PRR 1924: PRR, B&O (M-26B), W&LE > NKP

#2) PRR 1928: PRR (w/both flat & Dreadnaught ends)

#3) ARA 1923: B&O, (M-26, M-26A, M-26C, M-26D, M-26E), B&M, CNJ, Ga. Northern, LNE, MEC

====================================================================================
Repost #2 from Chris Barkan
====================================================================================

Red Caboose is manufacturing its X-29/ARA 1923 boxcars with two different
underframes.  One with a 5' kingpin to striker spacing and another with the
5'6" spacing.  The 5' spacing is what is included with the M-26A kits
currently on the market and is correct for these cars.  Later, they plan to
produce these cars with a UF with the 5'6" spacing which will be correct for
the B&O M-26C subclass.

RC had to make one compromise on the current ARA boxcar models.  The body
casting has the 4  rivets that attach each body bolster to the sides located
at the 5'6" spacing, but as I said above, the UF for the B&O M-26A cars has
the 5' spacing.  Consequently, when viewed in profile, these 4 rivets are 6"
out alignment with the body bolster.  Again, most modelers will probably not
care about this discrepancy, and for those that do, it is probably not a hard
fix  Preserving the lettering and restoring the paint in that area will be a
small challenge, but there is always weathering to hide sins!

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